<Page
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
  
  <Page.Resources>  
  		<DrawingBrush x:Key="MyDrawingBrush">
			<DrawingBrush.Drawing>
				<GeometryDrawing>
					<GeometryDrawing.Brush>
						<RadialGradientBrush>
							<GradientStop Color="#FFF66000" Offset="0"/>
							<GradientStop Color="#FFFFBA00" Offset="1"/>
						</RadialGradientBrush>
					</GeometryDrawing.Brush>
					<GeometryDrawing.Geometry>
						<RectangleGeometry RadiusX="0" RadiusY="0" Rect="0,0,100,100"/>
					</GeometryDrawing.Geometry>
				</GeometryDrawing>
			</DrawingBrush.Drawing>
		</DrawingBrush>
  </Page.Resources>
  
  <TextBlock
    Text="DrawingBrush"
    FontFamily="Tahoma" 
    FontSize="96" 
    FontWeight="Bold" 
    Foreground="{StaticResource MyDrawingBrush}" />
  
</Page>